LHB Coache & Train Lighting.pptx

railways

1. Presentation On LHB Coach & Train Lighting PRESENTED TO:- Dr. Mohd. Ahmed Dr. Archana Sharma Department of Electrical Engineering PRESENTED BY:- ASIF JAMAL (2007350200021) HARSH KUMAR GOND (2007350200031) 4 th Year Electrical Engineering

2. Railway Workshop Gorakhpur

3. Contents… Introduction Coaches Types of Coaches Features of Coaches How its benefits the Railway Train Lighting Cost Comparison Conclusion

4. Introduction… Indian railways is 4th largest railway network having route length of 68,043 kms. Over 12,000 trains carries over 30 million passengers and 2.8 millions tones of freight daily. Word’s largest enterprise with 1.5 million employees. United States China Russia India

5. COACHES … A passenger car (known as coach or carriage in the UK, and also known as a bogie in India) is a piece of railway rolling stock that is designed to carry passengers. The term passenger car can also be associated with a sleeping car, baggage, dining, railway post office and prisoner transport cars.

6. Types Of Coaches … ICF Coaches   ( Integral Coach Factory) LHB Coaches ( Linke Hofmann Busch )

7. ICF Coaches … Built at Integral Coach Factory  ( ICF ) is a manufacturer of  rail coaches  located in  Perambur ,  Chennai ,  Tamil Nadu , India. It was established in 1955. Modern Coach Factory   at  Raebareli   Rail Coach Factory   at  Kapurthala Marathwada Rail Coach Factory   at  Latur   Rail Coach Naveenikaran Karkhana   at  Sonipat . ICF coach costs between  ₹   80 Lakh to ₹ 1.5 C rore .

8. LHB Coaches … LHB coach costs between  ₹  1.5 Crore to ₹2.0 crore . T he power car which houses a generator costs about 3 crore  . Built at 1. Rail Coach Factory, Kapurthala  2. Integral Coach Factory, Chennai 3. Modern Coach Factory, Raebareli

9. Features of LHB Coach … No. Of Passengers - 78 (Chair car) - 56 (Ex. Chair car) Corrosion Free Coach Use of superior materials with longer life . Longer Coach LHB coaches are approximately 2-meters longer than the conventional ICF type coaches. This means “more travel space” “ increased seating capacity ”, “wider bays and doorways” etc.

10. Speed Potential LHB Coach ICF Coach Test speed 180 kmph 160 kmph Service Speed 160 kmph 140 kmph Oil Leakage Problem No Very high Features of LHB Coach … No major changes required for 200 kmph S peed

11. Features of LHB Coach … Light Weight Coach Weight of LHB coach is approximately “ 10%” lesser than the conventional coach . Higher passenger comfort Auto Closing Sliding Doors Wider Windows Superior Shell and furnishing Design Improved Air Conditioning System Use of Fire Retardant Materials

12. How It Benefits Railways … Lesser maintenance : Superior braking with Wheel slide protection (WSP) system based on microprocessor if the variation of speed of wheel of a Coach is more than 10 kmph. Brakes of the particular coach are released automatically by microprocessor unit till it is again reset. It protects the brake binding of the Coach. Bogie with less moving parts. Items of wear & tear shall not require replacement/renewal before 10 Lakh km. Use of stainless steel and less bogie moving parts shall reduce maintenance requirements. Entrance doors flush with side wall allowing automatic car washing.

13. Power Supply in Train

14. Self-Generation( SG) Mid-on-Generation(MOG) End-on-Generation(EOG) Head-on-Generation(HOG) Types of Generation …

15. Self Generation System(SG) 2×25 kW alternators for AC coach. 1×4.5 kW for non-AC coach. 110V DC Battery. The voltage of the alternator which varies with the speed of the train is regulated with the help of RRU and converted to 110 V DC and is used for charging the battery. 2x25 kVA, 110 V dc/415 V inverters for AC load. 110 V DC Supply for lights and fans. Axle driven system working on 24V DC/ 110 V DC

16. Self Generation(SG) 4.5 kW Non AC Coach A lternator 25 kW AC C oach A lternator

17. Self Generation(SG) RRU - Rectifier Cum Regulator Unit

18. Disadvantages The electrical load of the coach is restricted by the limitation of the capacity of generation i.e. 2*25 kW per coach at present. The power is not generated during standing or slow movement of the train, therefore bulky batteries are provided. There is no standby source for alternator and batteries, so system became poor reliability. The system requires the extensive maintenance of alternator, batteries, belts, tensioning device etc. • The system has the very poor efficiency of 57%for power it receives from the locomotive

19. End-on-Generation(EOG) DG S et : - Diesel Generator set Engine Power car DG SET C o a ch 415V 110V 415V 110V Pantry Car Step D own T ransformer AC 750V,3 P hase

20. EOG system is followed for fully air conditioned & Premium special trains. Example- Rajdhani ,Shatabdi, Duranto, Garib Rath. Two power cars each equipped with 2×750 kVA DG sets. DG set power supply :- 415V for AC coaches 110V for Non-AC End-on-Generation(EOG) Disadvantages: The cost of energy is high due to fuel cost. Even with 750V, 3 phase, there is still an effect of voltage drop at the farthest end of the train. Noise and smoke pollution are generated from power cars.

21. End-on-Generation(EOG)

22. Mid-on- Generation(MOG) MOG with 415V, 3 phase generation, and 110V AC utilization. The 110 V AC supplied to the coaches through couplers The power car coach had two DA set of 30 KVA each out of which one was used as standby. These trains had one power car in the middle of the train, which fed power supply to the coaches at either side of power car. The MOG system was used in slow-moving passenger trains. Example EMU(Electric Multiple Unit) & DMU(Diesel Multiple Unit).

23. Head-0n-Generation(HOG) Power car 960 V HLC C o ac h 415V 110V 415V 110V Pantry Car Step D own T ransformer AC 750V,3phase 960V 1 P ha e Engine P a nt o gr a ph AC 25KV,1 P hase HLC: Hotel Load Converter 25KV/960V 1Phase(AC) Step Down Transformer

24. Head-0n-Generation(HOG) Power is supplied from the train locomotive at the head of the train. The single phase 25 kV transformer. The electric locomotive is provided with hotel load converter. The Hotel Load Converter is converted to three phase AC At 750V using 2x500 KVA inverter. This is the most efficient system as the cost of power is about 25% less as compared to EOG.

25. Passenger Locomotive WAP – Wide Gauge Alternating Current Passenger WAP 1 WAP 4 WAP 5 WAP 7

26. Cost Comparison Average cost of electricity Per Unit = Rs 7 Per Unit Cost of energy for HOG = Rs 7 to 8 Per Unit Cost of energy for SG = Rs 10 to 12 Per Unit Cost of Energy for EOG = Rs 25 to 26  Per Unit

27. Thank You !